11112010212121 has 16 divisors (see below), whose sum is σ = 13676409357184. Its totient is φ = 8791862891904.

The previous prime is 11112010212109. The next prime is 11112010212131. The reversal of 11112010212121 is 12121201021111.

It is a cyclic number.

It is not a de Polignac number, because 11112010212121 - 2⁵ = 11112010212089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112010212095 and 11112010212104.

It is not an unprimeable number, because it can be changed into a prime (11112010212131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18612565 + ... + 19200301.

It is an arithmetic number, because the mean of its divisors is an integer number (854775584824).

Almost surely, 2^{11112010212121} is an apocalyptic number.

It is an amenable number.

11112010212121 is a deficient number, since it is larger than the sum of its proper divisors (2564399145063).

11112010212121 is a wasteful number, since it uses less digits than its factorization.

11112010212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795520.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11112010212121 its reverse (12121201021111), we get a palindrome (23233211233232).

The spelling of 11112010212121 in words is "eleven trillion, one hundred twelve billion, ten million, two hundred twelve thousand, one hundred twenty-one".